Polypodiatae
水龙骨纲
🗣️ 情景例句
We've been driving for hours with no gas station in sight.
我们开车开了好久也没有看到一个加油站。
The best horse needs breaking, and the aptest child needs teaching.
玉不琢不成器。
In 1860, a better plan was put forward by an Englishman, William Low.
1860年，一位名叫威廉。洛的英国人提出了一项更好的计划。